Tex. Educ. Code § 37.0021. Use of Confinement, Restraint, Seclusion, and Time-Out.

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(g)  This section and any rules or procedures adopted under this section do not apply to:
(1)  a peace officer while performing law enforcement duties;       
(2)  juvenile probation, detention, or corrections personnel; or    
(3)  an educational services provider with whom a student is placed by a judicial authority, unless the services are provided in an educational program of a school district.